US4844036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for retaining, supplying fuel to and providing electrical contact for electromagnetically actuatable fuel injection valves
Assignee: Robert Bosch GmbH
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Filing: 1988-08-29
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Granted: 1989-07-04
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Expires: 2008-08-29
Abstract
Abstract In known devices, the fuel injection valves, disposed in individual receiving bores, are retained individually with clamping shoes, and electrical contact is provided by individual electric plugs. The novel device is intended to assure that all the fuel injection valves are retained and provided with electrical contact simultaneously. The fuel injection valves inserted into receiving bores of a basic body are retained in common in the receiving bores by means of a contact-making outlet strip, slipped onto the basic body, and are electrically connected in common by means of electrically conductive contact elements. The entire compact device can be fastened as a unit to the engine and electrically connected, via a connection plug to an electronic control unit for trigging the fuel injection valves. The device makes adaptation to various engine types possible.
Inventors
- 👤 Helmut Bassler
- 👤 Karl Gmelin
- 👤 Heinz Ehrentraut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:14
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/14; F02M61/145; F02M51/00; F02M51/005; F02M69/00; F02M69/04; F02M69/042; F02M69/044; F02M69/46; F02M69/462; F02M69/465
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
144 words
A device for retaining, supplying fuel to and providing electrical contact for electromagnetically actuatable fuel injection valves for fuel injection systems of internal combustion engines, having a dimensionally stable basic plastic body provided with stepped receiving bores for guiding the fuel injection valves, each of said bores open in the axial direction and arranged to surround one fuel injection valve which communicates with a fuel supply line, said valves brought into plug connection, by means of first electrically conductive contact elements disposed as plugs, with second electrically conductive contact elements of the fuel injection valves, further in which a contact-making outlet strip (24) is connected to the basic body (1), on which strip the plugs (25) are disposed in common, said outlet strip (24) further adapted to cover the receiving bores (15) and retain the fuel injection valves (14) in the receiving bores (15).
Claim 2
Independent Claim
144 words
A device for retaining, supplying fuel to and providing electrical contact for electromagnetically actuatable fuel injection valves for fuel injection systems of internal combustion engines, having a dimensionally stable basic plastic body provided with stepped receiving bores for guiding the fuel injection valves, each of said bores open in the axial direction and arranged to surround one fuel injection valve which communicates with a fuel supply line, said valves brought into plug connection, by means of first electrically conductive contact elements disposed as plugs, with second electrically conductive contact elements of the fuel injection valves, further in which a contact-making outlet strip (24) is connected to the basic body (1), on which strip the plugs (25) are disposed in common, said outlet strip (24) further adapted to cover the receiving bores (15) and retain the fuel injection valves (14) in the receiving bores (15).
Claim 3
Dependent Claim
35 words
A device as defined by claim 1, in which the outlet strip (24) is embodied of plastic and is connectable to the basic body (1) by means of an electric snap-in connection (34, 43, 44).
Claim 4
Dependent Claim
27 words
A device as defined by claim 1, in which the basic body (1) and the outlet strip (24) can be affixed in common to the engine (51).
Claim 5
Dependent Claim
38 words
A device as defined by claim 1, in which electric leads (29) for electrical connection of the first electrically conductive contact elements (28) are disposed in the outlet strip (24) and are connected to a connection plug (30).
Claim 6
Dependent Claim
27 words
A device as defined in claim 1, in which at least one sealing ring (46) is disposed between the basic body (1) and the outlet strip (24).
Claim 7
Dependent Claim
38 words
A device as defined by claim 1, in which at least one connection fitting (2) for the fuel supply line (3) and one connection fitting (4) for a return line (5) are disposed on the basic body (1).
Claim 8
Dependent Claim
26 words
A device as defined by claim 1, in which a receiving flange (7) for a pressure regulating valve (9) is provided on the basic body (1).
References Cited (Backward Citations)
US4395988A
Cited
US4474160A
Cited
US4474159A
Cited
US4556034A
Cited
US4747384A
Cited
US4756289A
Cited
US4776313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |